<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>绝对定位-居中</title>
    <style>
        img {
            position: absolute;
            left: 50%;
            top: 50%;
            /* margin-left: -265px;
      margin-top: -127px; */
            /* 方便： 50% 就是自己宽高的一半 */
            transform: translate(-50%, -50%);
        }
    </style>
</head>

<body>
    <img src="./assets/login.webp" alt="">
</body>

</html>